Jacaranda | |
---|---|
A flower of Jacaranda mimosifolia | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Bignoniaceae |
Tribe: | Jacarandeae |
Genus: | Jacaranda Juss. |
Type species | |
Jacaranda caerulea |
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Jacaranda is a genus of 49 species of flowering plants in the family Bignoniaceae, native to tropical and subtropical regions of the Americas.[1]
The purple leaf sand cherry is a shrub or short tree that also features small purple fruits suitable for wildlife. Sand cherries are hardy in quite cold climates, suitable as far north as zone 2. It is a roundish specimen that grows 7 to 10 feet wide and tall and requires a lot of sunlight. USDA Growing Zones: 2 to 8.
A cosmopolitan plant, Jacaranda mimosifolia is quite common in Southern California, Florida, Mexico, Argentina, Brazil, South Africa, Botswana, Zimbabwe, Australia, New Zealand, Israel, Italy,[2]Portugal, Spain (particularly in Málaga) and Zambia and has been introduced to most tropical and subtropical regions to the extent that it has entered the popular culture. It has been planted widely in Asia especially in Nepal.
The generic name is also used as the common name.
Etymology[edit]
The name is of South American (more specifically Tupi-Guarani) origin, meaning fragrant.[3] The word jacaranda was described in A supplement to Mr. Chambers's Cyclopædia, 1st ed., (1753) as 'a name given by some authors to the tree the wood of which is the log-wood, used in dyeing and in medicine' and as being of Tupi-Guarani origin,[4][5] by way of Portuguese.[6] Although not consistent with the Guarani source, one common pronunciation of the name in English is given by /ˌdʒækəˈrændə/.[7]
Description[edit]
The species are shrubs to large trees ranging in size from 20 to 30 m (66 to 98 ft) tall. The leaves are bipinnate in most species, pinnate or simple in a few species. The flowers are produced in conspicuous large panicles, each flower with a five-lobed blue to purple-blue corolla; a few species have white flowers. The fruit is an oblong to oval flattened capsule containing numerous slender seeds. The genus differs from other genera in the Bignoniaceae in having a staminode that is longer than the stamens, tricolpate pollen, and a chromosome number of 18.
Taxonomy[edit]
The genus is divided into two sections, sect. Monolobos and sect. Dilobos DC., based on the number of thecae on the anthers. Sect. Jacaranda has 18 species and is found primarily in western South America, Central America, Mexico, and the Caribbean. Sect. Dilobos, which is believed to be the primitive form, has 31 species and is found primarily in southeastern Brazil including the Paraná River valley. The anatomy of the wood in the two sections also differs. Although usually treated in sect. Jacaranda, J. copaia differs somewhat from all other members of the genus, and may be intermediate between the two sections (Dos Santos & Miller 1997).
Species[edit]
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Sect. Monolobos
- Jacaranda acutifoliaBonpl.
- Jacaranda arboreaUrb.
- Jacaranda brasiliana(Lam.) Pers.
- Jacaranda caerulea(L.) J.St.-Hil.
- Jacaranda caucanaPittier
- Jacaranda copaia(Aubl.) D.Don
- Jacaranda cowelliiBritton & P.Wilson
- Jacaranda cuspidifoliaMart. ex DC.
- Jacaranda decurrensCham.
- Jacaranda ekmaniiAlain
- Jacaranda hesperiaDugand.
- Jacaranda mimosifoliaD.Don
- Jacaranda obtusifoliaHumboldt & Bonpl.
- Jacaranda orinocensisSandw.
- Jacaranda poitaeiUrb.
- Jacaranda praetermissaSandw.
- Jacaranda selleanaUrb.
- Jacaranda sparreiA.H.Gentry
Sect. Dilobos
- Jacaranda bracteataBur. & K.Schum.
- Jacaranda bullataA.H.Gentry
- Jacaranda campinaeA.Gentry & Morawetz
- Jacaranda carajasensisA.Gentry
- Jacaranda caroba(Vell.) DC.
- Jacaranda crassifoliaMorawetz
- Jacaranda duckeiVattimo
- Jacaranda egleriSandwith
- Jacaranda glabra(DC.) Bur. & K.Schum.
- Jacaranda grandifoliolataA.H.Gentry
- Jacaranda heterophyllaM.M.Silva-Castro[8]
- Jacaranda intricataA.Gentry & Morawetz
- Jacaranda irwiniiA.Gentry
- Jacaranda jasminoides(Thunb.) Sandw.
- Jacaranda macranthaCham.
- Jacaranda macrocarpaBur. & K.Schum.
- Jacaranda micranthaCham.
- Jacaranda montanaMorawetz
- Jacaranda moriiA.Gentry
- Jacaranda mutabilisHassl.
- Jacaranda obovataCham.
- Jacaranda oxyphyllaCham.
- Jacaranda paucifoliataMart. ex DC.
- Jacaranda puberulaCham.
- Jacaranda racemosaCham.
- Jacaranda rufaManso
- Jacaranda rugosaA.H.Gentry
- Jacaranda simplicifoliaK.Schum.
- Jacaranda subalpinaMorawetz
- Jacaranda uleiBur. & K.Schum.
Cultivation[edit]
Jacaranda seedling
Jacaranda can be propagated from grafting, cuttings and seeds, though plants grown from seeds take a long time to bloom. Jacaranda grows in well-drained soil and tolerates drought and brief spells of frost and freeze.[9][10]
This genus thrives in full sun and sandy soils, which explains their abundance in warmer climates. Mature plants can survive in colder climates down to −7 °C (19 °F); however, they may not bloom as profusely. Younger plants are more fragile and may not survive in colder climates when temperatures drop below freezing.
Uses[edit]
Several species are widely grown as ornamental plants throughout the subtropical regions of the world, valued for their intense flower displays. The most often seen is the Blue Jacaranda (Jacaranda mimosifolia; syn.J. acutifolia hort. non Bonpl.). Other members of the genus are also commercially important; for example the Copaia (Jacaranda copaia) is important for its timber because of its exceptionally long bole.
Purple Tree Spider
Gallery[edit]
Purple Trees
- Flowers of Jacaranda ulei
- Jacaranda seeds
- Jacaranda mimosifolia trees in full bloom in Islamabad, Pakistan
References[edit]
- ^Gentry, A. W.; Morawetz, W. (1992). 'Bignoniaceae: Part II (Tribe Tecomeae)'. Flora Neotropica. 25 (2): 51–104. JSTOR4393739.
- ^'Paulonia e jacaranda: Alberi delle ametiste'. 2011-06-16.
- ^'Jacaranda mimosifolia - Parcs i Jardins - Itineraris'. bcn.cat.
- ^Oxford English Dictionary 2nd Ed. (1989)
- ^'Jacaranda'. Online Etymology Dictionary. Retrieved 2012-03-07.
- ^'Jacaranda'. Merriam Webster. Retrieved 2012-03-07.
- ^Wells, John C. (2009). 'jacaranda'. Longman Pronunciation Dictionary. London: Pearson Longman. ISBN978-1-4058-8118-0.
- ^Silva-Castro, Milene Maria Da (2017). 'A new species of Jacaranda (Bignoniaceae) from the Chapada Diamantina (Bahia, Brazil)'. Phytotaxa. 295 (3): 287–291. doi:10.11646/phytotaxa.295.3.10. ISSN1179-3163.
- ^'Jacaranda Tree'. The Lovely Plants.
- ^'Jacaranda Tree'. www.wikilawn.com. Retrieved 13 May 2020.
External links[edit]
Wikimedia Commons has media related to Jacaranda. |
Wikispecies has information related to Jacaranda. |
- Dos Santos, G., & Miller, R. B. (1997). Wood anatomy of Jacaranda (Bignoniaceae): Systematic relationships in sections Monolobos and Dilobos as suggested by twig and stem rays. IAWA Journal 18: 369–383. Available online (pdf file).
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